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GB: Kerafol Keratherm Red Isolators (TO-220 / TO-247)
GB: Kerafol Keratherm Red Isolators (TO-220 / TO-247)
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Old 15th May 2009, 04:06 PM   #11
mlloyd1 is offline mlloyd1  United States
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GB: Kerafol Keratherm Red Isolators (TO-220 / TO-247)
if this goes, 20 of the TO-220 and 20 of the TO-247 for me.

thx,
mlloyd1
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Old 15th May 2009, 04:11 PM   #12
luvdunhill is offline luvdunhill  United States
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Quote:
Originally posted by AndrewT
32mm x 23mm is enormous for a To247.
It will easily fit a To264. More than 2mm spare around every edge.
Yes, perhaps your correct. I was erroneously calling the 2SJ201 a TO-247, which I see is not correct. Is it a TO-3P? In which case ( ) , this package must vary tremendously.

So, I guess Hannes, it will fit 2SK1530

Andrew, are you recommending that we look at a smaller size?
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Old 15th May 2009, 04:22 PM   #13
PH104 is offline PH104  United States
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GB: Kerafol Keratherm Red Isolators (TO-220 / TO-247)
I like the bigger size -- more flexibility: you can shave down but not add width. And it doesn't hurt anything.

With 2mm (0.08") overhang on each, you only need to mount transistors 4mm or a hair under 3/16" spacing between the transistors to avoid overlap.

Just my
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Old 15th May 2009, 04:27 PM   #14
Valeriano is offline Valeriano  Italy
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Hi Marc

interesting stuff.. 50 pcs each for me

thanks!

Valeriano
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Old 15th May 2009, 06:16 PM   #15
HaLo6 is offline HaLo6  United States
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LM3886 are 20x17 (WxH) ... are these pretty easy to trim?
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Old 15th May 2009, 06:24 PM   #16
luvdunhill is offline luvdunhill  United States
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Quote:
Originally posted by HaLo6
LM3886 are 20x17 (WxH) ... are these pretty easy to trim?
yup, indeed they are. Don't forget about verifying the hole location and diameter though.
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Old 15th May 2009, 06:51 PM   #17
h_a is offline h_a  Europe
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Quote:
o, I guess Hannes, it will fit 2SK1530
I'm glad to hear that as I didn't bother to look at the dimensions.

Better don't rely on that in general, you know there exist people that order TO-247 Silpad heatpads and jeez they don't fit a 2SK1530.

But the same people coudn't be held back to change the design in the last minute as initially other fets (real TO-247) were planned

So what - the perfect excuse to order some sheets of Kerafol Thanks for digging out the old post

Have fun, Hannes
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Old 15th May 2009, 07:05 PM   #18
luvdunhill is offline luvdunhill  United States
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Quote:
Originally posted by h_a I'm glad to hear that as I didn't bother to look at the dimensions.

well, probably that was my doing as I recently bought 50 pairs of 2SJ201 / 2SK1530 at the price of $(highway robbery / 2) and subconsciously knew I'd need fancy pads for them
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Old 15th May 2009, 07:50 PM   #19
h_a is offline h_a  Europe
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Nice choice

Oh also thanks to Patrick for sharing his gadget! I've never heard of that company before.

Have fun, Hannes
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Old 16th May 2009, 06:28 AM   #20
EUVL is offline EUVL  Europe
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I have posted a lot more gadgets than people have ever noticed or paid attention to.
You just need to search under EUVL, dig them all out and read all over again ......




Patrick
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